This means Iranians who are aiding insurgents inside Iraq will not be immune from U.S. actions, the chairman of the Joint Chiefs of Staff told a news conference.

Pace was precise in describing what the coalition knows about the threats from Iraq. He said that in the last two months, as Iraqi and coalition forces went after people making improvised explosive devices, coalition forces have captured Iranians.

“We know that some of the materials used in building the IEDs – especially the very lethal explosively formed projectile – that those are made in Iran,” he said.

“That does not translate to the Iranian government per se is directly involved in doing this,” Pace said. “What it does say is things that are made in Iran are being used in Iraq to kill coalition soldiers, and that some Iranians have been captured in the process of going after the networks that build them.”